The Reckoners (book series)

The Reckoners is a young adult sci-fi story, set in an undisclosed future in which a major event known as Calamity hits earth. Calamity gifts certain people with superheroic-like powers. They are thus called Epics. With the powers grows the need to destroy, rule, and kill without mercy. Major cities fall under the tyranny of an Epic, with no one but other Epics to get in their way.